The evaluation system for the synchronicity in grain growth in a rice panicle and detection of related QTLs
Project/Area Number |
21780016
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Research Category |
Grant-in-Aid for Young Scientists (B)
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Allocation Type | Single-year Grants |
Research Field |
Crop science/Weed science
|
Research Institution | Ishikawa Prefectural University |
Principal Investigator |
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Project Period (FY) |
2009 – 2011
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Project Status |
Completed (Fiscal Year 2011)
|
Budget Amount *help |
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2011: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2010: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2009: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
|
Keywords | イネ / 穎果 / 成長斉一性 / 成長停滞穎果 / QTL / 高温 / 量的形質遺伝子座(QTL) / 空籾 / 発育停止籾 / コシヒカリ / Kasalath |
Research Abstract |
The synchronicity in grain growth in a panicle was well evaluated by staining spikelets with iodine-potassium iodine solution using the panicle about 10 days after flowering. The synchronicity in grain growth was affected by temperature and radiation levels and was possibly associated with the endogenous ABA level in the grain. In the chromosome segment substitution lines between Koshihikari/Kasalath, several lines showed specifically low The synchronicity in grain growth, which is hopefully a desired traits in improving grain filling and the association between the synchronicity in grain growth and grain filling percentage was analyzed.
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Report
(4 results)
Research Products
(8 results)